Shagawa Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Shagawa Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Shagawa Lake today is 20.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| AUG 24 | 21.1°C | 24.5°C | |
| AUG 25 | 21.1°C | 24.5°C | |
| AUG 26 | 21.4°C | 24.5°C | |
| AUG 27 | 20.5°C | 24.5°C | |
| AUG 28 | 20.8°C | 24.5°C | |
| AUG 29 | 20.8°C | 24.5°C | |
| AUG 30 | 20.8°C | 24.5°C | |
| AUG 31 | 20.8°C | 24.5°C | |
| SEP 1 | 16.1°C | 20.5°C | |
| SEP 2 | 16.1°C | 20.2°C | |
| SEP 3 | 16.1°C | 20.0°C | |
| SEP 4 | 16.1°C | 19.8°C | |
| SEP 5 | 16.1°C | 19.6°C | |
| SEP 6 | 16.1°C | 19.3°C | |
| SEP 7 | 16.1°C | 19.1°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 3°C | 6°C |
| February | 0°C | 1°C | 3°C |
| March | 0°C | 1°C | 3°C |
| April | 1°C | 5°C | 9°C |
| May | 4°C | 10°C | 16°C |
| June | 12°C | 17°C | 21°C |
| July | 15°C | 21°C | 27°C |
| August | 19°C | 25°C | 30°C |
| September | 14°C | 16°C | 19°C |
| October | 9°C | 13°C | 16°C |
| November | 1°C | 7°C | 12°C |
| December | 0°C | 3°C | 6°C |
Shagawa Lake: Water Temperature by Location
Shagawa Lake: Weather Forecast
September 1
September 2
September 3
September 4
September 5
September 6
Location & Local Information
Shagawa Lake in northeastern Minnesota typically experiences cold water for much of the year, with surface temperatures changing seasonally. In spring (April–May) the lake often runs cool, roughly 40–55°F (4–13°C) as snowmelt and cooler air keep the water chilly. Summer (June–August) brings the warmest surface conditions, commonly ranging from about 65–75°F (18–24°C) on average and occasionally reaching the upper 70s°F (around 25–26°C) during heat waves. In early fall (September–October) temperatures decline back toward roughly 45–60°F (7–16°C). Through winter the lake is usually ice-covered and surface water is at or just above freezing, near 32–35°F (0–2°C) under the ice.
Swimming is generally possible in the ice‑free months when the surface water warms, and people often swim from shorelines, docks, and lakeside properties in summer. Public access points and boat landings provide entry for recreation, but conditions can vary and there are usually no lifeguards, so swimmers should be cautious. Cold spring and fall water increases the risk of cold shock and hypothermia, and winter ice makes open‑water swimming unsafe except in regulated, controlled events. Local advisories, weather and ice conditions should be checked before entering the water.